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UNIFIED SOIL CLASSIFICATION SYSTEM <br /> MAJOR DIVISIONS USCS TYPICAL <br /> SYMBOL DESCRIPTIONS <br /> GW WELL-GRADED GRAVELS,GRAVEL-SAND <br /> CLEAN GRAVELS : MIXTURES WITH LITTLE OR NO FINES <br /> GRAVELS WITH LITTLE <br /> OR NO FINES <br /> ' POORLY-GRADED GRAVELS,GRAVEL-SAND <br /> (More than half of o GP MIXTURES WITH LITTLE OR NO FINES <br /> coarse fraction O <br /> is larger than <br /> the#4 sieve) o GM SILTY GRAVELS,GRAVEL-SILT-SAND <br /> GRAVELS MIXTURES <br /> COARSE WITH OVER <br /> GRAINED 12% FINESGC CLAYEY GRAVELS,GRAVEL-SAND-CLAY <br /> SOILS MIXTURES <br /> WELL-GRADED SANDS,SAND-GRAVEL <br /> (More than half S+W <br /> of material SANDS CLEAN SANDS MIXTURES WITH LITTLE OR NO FINES <br /> is larger than WITH LITTLE <br /> the#200 sieve) <br /> (More than half of OR NO FINESSP pOORLV-GRADED SANDS,SAND-GRAVEL <br /> coarse fraction MIXTURES WITH LITTLE OR NO FINES <br /> is smaller than <br /> the#4 sieve) <br /> SM SILTY SANDS,SAND-GRAVEL-SILT MIXTURES <br /> SANDS WITH <br /> OVER 12% FINES <br /> SC CLAYEY SANDS,SAND-GRAVEL-CLAY MIXTURES <br /> INORGANIC SILTS&VERY FINE SANDS, <br /> ML SILTY OR CLAYEY FINE SANDS, <br /> CLAYEY SILTS WITH SLIGHT PLASTICITY <br /> r SILTS AND CLAYSINORGANIC CLAYS OF LOW TO MEDIUM <br /> CL <br /> PLASTICITY,GRAVELLY CLAYS,SANDY CLAYS, <br /> (Liquid limit less than 50) SILTY CLAYS,LEAN CLAYS <br /> FINE <br /> GRAINED ORGANIC SILTS&ORGANIC SILTY CLAYS <br /> SOILS OL OF LOW PLASTICITY <br /> INORGANIC SILTS,MICACEOUS OR <br /> (More than half MH <br /> of material DIATOMACEOUS FINE SAND OR SILT <br /> is smaller than <br /> the#200 sieve) SILTS AND CLAYS <br /> .. CH INORGANIC CLAYS OF HIGH PLASTICITY, <br /> (Liquid limit greater than 50) FAT CLAYS <br /> OCLAYS&ORIC SILTS <br /> H OFMEDIUM-TO-HIGHI PLASTICITY <br /> HIGHLY ORGANIC SOILS PT PEAT,HUMUS,SWAMP SOILS WITH HIGH <br /> r ORGANIC CONTENT <br /> m <br /> a <br /> m UNIFIED SOIL CLASSIFICATION SYSTEM PLATE <br /> 0 <br /> KLEINFELDER <br /> SIKH TEMPLE <br /> N 4 <br /> q <br /> Drafted By. G.GOMEZ Project No.: 59149.G01 <br /> Y Date: 8/30/2005 File Number: ST05GI59 <br /> fAUNbM IOeMeb>.bs.2W5 <br />